Processing refrigerators in health care facilities: means, standards and step-by-step instructions

In medical institutions, refrigeration equipment is used for storing medicines, vaccines, biomaterials and food products for patients. Improper processing of refrigerators in health care facilities can lead to the proliferation of pathogens microorganisms, spoilage of medicines and violation of sanitary and epidemiological requirements. According to current standards SanPiN 2.1.3.2630-21 and methodological recommendations Rospotrebnadzor, disinfection of refrigeration equipment should be carried out taking into account its functional purpose, frequency of use and type of stored products.

In this article we will analyze what products can be used to treat refrigerators in health care facilitieshow often this needs to be done, and what mistakes medical personnel most often make. We will pay special attention to the differences in the processing of refrigerators for medicines, vaccines and food products —each type requires a specific approach. We will also provide an up-to-date list of approved disinfectants and step-by-step instructions taking into account the latest changes in legislation.

Regulatory requirements for the processing of refrigerators in health care facilities

Disinfection of refrigeration equipment in medical institutions is regulated by several key documents:

• 📜 SanPiN 2.1.3.2630-21 —sanitary rules for organizations engaged in medical activities. Determines the frequency of cleaning and disinfection.
• 📄 MU 3.5.1877-04 —guidelines for the disinfection of surfaces in medical institutions.
• 🏥 Order of the Ministry of Health No. 125n — rules for storing medicines, including requirements for refrigeration equipment.
• 💉 SP 3.3.2.3217-14 —standards for storing immunobiological preparations (vaccines).

According to these documents refrigerators in health care facilities are subject to treatment:

• 🧼 Daily —wet cleaning of internal and external surfaces using detergents.
• 🦠 once every week —disinfection using approved antiseptics.
• ❄️ During defrosting —full sanitary treatment with dismantling of removable elements (if provided for by the design).
• 🚨 After incidents —when packages with biomaterials are depressurized, medicines are spilled or mold is detected.

Important: refrigerators for storing vaccines are processed according to a separate schedule agreed with Rospotrebnadzor. Their disinfection should be carried out in the periods between planned deliveries of immunobiological preparations in order to avoid violations of the temperature regime.

⚠️ Attention: Since 2026, additional requirements have been introduced for the processing of refrigerators with heat-labile drugs (for example, insulin, some antibiotics). Now after disinfection it is mandatory to carry out control of residual traces of disinfectants using test strips. This is due to the risk of chemical inactivation of drugs.

Approved products for treating refrigerators in health care facilities

Not all Disinfectants are suitable for treating refrigeration equipment in medical institutions. The drugs must:

• 🔬 Have registration certificate of Roszdravnadzor for use in health care facilities.
• 🧪 Be compatible with materials refrigerator (plastic, stainless steel, rubber seals).
• ❄️ Do not leave toxic residuesthat can spoil medicines or products.
• 🦠 Possess a wide spectrum of action (bacteria, viruses, fungi).

The table below shows approved and recommended products for the treatment of refrigerators in health care facilities (as of 2026 year):

Important: Since 2026, it is prohibited to use chlorine-based products (for example, "Belizn") to disinfect refrigerators in health care facilities due to the risk of corrosion of metal parts and the formation of toxic compounds when interacting with medications.

⚠️ Attention: Before using a new disinfectant, check its compatibility with rubber sealing material refrigerator. Some modern products (for example, based on hydrogen peroxide) can cause cracking of silicone gaskets.

Step-by-step instructions for processing a refrigerator in a health care facility

The process of disinfection of refrigeration equipment in a medical institution includes several mandatory steps. Procedure depends on the type of refrigerator (medicinal, vaccine, food) and the degree of contamination. Below is a universal instruction suitable for most cases.

1. Preparation for processing

• 🔌 Disconnect the refrigerator from the mains (if this does not contradict the manufacturer's instructions).
• 📦 Remove all contents - medications, vaccines or products should be temporarily moved to a backup refrigerator with a similar temperature regime.
• 🧊 Let the ice thaw (if the refrigerator is not with the No Frost system). Use trays to collect melt water.
• 🧽 Remove all removable elements - shelves, containers, grates. They need to be processed separately.

2. Washing and disinfection

Use two-step treatment:

1. Washing with detergent (for example, Progress or Alina-P) to remove visible dirt. Concentration - according to the manufacturer's instructions.
2. Disinfection one of the permitted means (see table above). The solution is applied by spraying or wiping using disposable wipes.

Pay special attention to:

• 🔍 Sealing rubber —mold often accumulates here.
• 💧 Drainage hole (if any) - it needs to be cleaned and treated with a disinfectant solution.
• 🔄 Ventilation grilles (in models with the No Frost system).

3. Ventilation and assembly

After disinfection:

• ⏳ Soak exposure time (see instructions for the disinfectant).
• 🌬️ Ventilate the refrigerator for 30–60 minutes (with the door open).
• 🧼 Wipe the surfaces with a clean cloth soaked in distilled water (if rinsing is required).
• 🔙 Install the removable elements in place.

Only after complete drying you can connect the refrigerator to the network reload medicines or products back.

Disconnect from the network and remove the contents|

Defrost (if necessary)|

Wash the internal surfaces with detergent|

Apply a disinfectant solution for 30–60 minutes|

Wipe the sealing rubber and drainage hole|

Ventilate and dry the refrigerator|

Put shelves and containers in place-->

Errors when processing refrigerators in health care facilities

Even experienced medical personnel sometimes make mistakes that can negate all disinfection efforts. Here the most common mistakes and their consequences:

• 🚫 Use of household detergents (for example, Fairy or Mr. Muscle). They do not provide the required level of disinfection and can leave a film that attracts dust.
• 🕒 Failure to comply with the exposure time. If the disinfectant solution is washed off ahead of time, bacteria and viruses will remain alive.
• 🧤 Working without protective equipment. Many professional disinfectants cause burns to the skin and mucous membranes.
• 🔥 Use of abrasive spongesthat scratch the interior coating of the refrigerator. Microcracks become a breeding ground for bacteria.
• ❄️ Incomplete defrosting before processing. Ice and frost reduce the effectiveness of disinfectants.

Another critical error is ignoring the sealing rubber. According to data Rospotrebnadzor, in 70% of cases, mold in hospital refrigerators is found on rubber gaskets. They need to be treated separatelyusing a soft brush and a disinfectant solution with an antifungal effect (for example, Deochlor).

⚠️ Attention: If other highly toxic drugs were stored in the refrigerator, its processing must be carried out by forces cytostatics or other highly toxic drugs, its processing must be carried out by specialized organization with a license to work with hazardous waste. Self-disinfection in this case is prohibited!

Features of processing refrigerators for vaccines

Refrigerators intended for storage immunobiological preparationsrequire special approach. Their processing is regulated and has a number of key differences: immunobiological drugs refrigerators). SP 3.3.2.3217-14 and has a number of key differences:

• 📅 Frequency of processing - at least once every 2 weeks (instead of once a week for conventional refrigerators).
• 🌡️ Temperature control — before and after processing, the temperature must be recorded using thermologist or an electronic thermometer.
• 🧴 Choice of disinfectants —only preparations with a neutral pH are allowed, not containing chlorine, phenol or formaldehyde.
• ⏱️ Time ventilation —at least 2 hours (instead of 30–60 minutes for other types of refrigerators).

Important: Vaccine refrigerators cannot be processed on the days of delivery of drugs. Disinfection is planned for periods between deliveries to avoid disruption. cold chainIf treatment is urgently necessary (for example, when spilling a vaccine), use express methods with a minimum ventilation time. (for example, processing Sterillium followed by wiping with napkins soaked in distilled water).

For vaccine refrigerators it is also necessary:

• 📝 Maintaining processing logwhere the date, product used, temperature before and after disinfection are recorded.
• 🔍 Monthly inspection for corrosion, damage to the seal and the presence of condensation.
• 🛠️ Annual maintenance with leak testing and thermostat calibration.

Processing of refrigerators for food products in healthcare facilities

Refrigerators used to store patient food are covered. SanPiN 2.3/2.4.3590-20 i Technical Regulations of the Customs Union 021/2011. Their processing has its own nuances:

• 🍎 Approved disinfectants — must be marked “for food enterprises” (for example, Mistral, Septolite-Plus).
• 🧼 Mandatory rinsing disinfectants after exposure (with the exception of products that do not require rinsing, for example, based alcohol).
• 📅 Frequency of processing —daily (wet cleaning) + 1 time every 5 days (disinfection).
• 🥩 Separate storage —if raw and prepared foods are stored in the refrigerator, processing is carried out separately for each zones.

The following requirements are also relevant for food refrigerators:

• 🥬 Use of containers with lids —all products must be packaged to avoid contact with internal surfaces.
• 🧊 Regular defrosting —not less than once a month (even for models with the No Frost system).
• 📋 Product labeling —each package must indicate the placement date and expiration date.

Particular attention is paid elimination of odors. In food refrigerators of health care facilities, flavorings or odor absorbers based on chemicals are not allowed. Only:

• 🍋 Natural products - lemon slices, baking soda (on a tray).
• ❄️ Ozonators (subject to certification for medical institutions).

⚠️ Attention: If dishes for patients with immunodeficiency or oncological diseaseswere stored in the food refrigerator, its processing should be carried out using disinfectants with virucidal action (for example, Lysoformin 3000).

Quality control of processing of refrigerators in health care facilities

Disinfection of refrigeration equipment in medical institutions does not end with wiping surfaces. Efficiency control is a mandatory stage, which includes:

1. Visual inspection

After processing, the following is checked:

• 🔍 Absence visible contamination (dust, stains, mold).
• 💧 Absence condensation on the walls and seal.
• 🔄 Integrity sealing rubber and plastic parts.

2. Microbiological control

In accordance with MU 3.5.1877-04at least once a quarter is carried out:

• 🧫 Bacteriological culture from internal surfaces refrigerator.
• 📊 Estimation of the total microbial number (TMC) and the absence of pathogenic microorganisms (Salmonella, Staphylococcus aureus, E. coli).

Standards for refrigerators of healthcare facilities:

• 🦠 TMC - no more than 50 CFU/cm².
• 🚫 Absence opportunistic and pathogenic microorganisms.

3. Control of residual disinfectants

Since 2026, a new requirement has been introduced - checking for the presence of residual traces of disinfectants. This is especially important for refrigerators with medicines, since some disinfectants can:

• 💊 Inactivate antibiotics (for example, penicillins).
• 🧪 Change the pH of solutions for injections.
• 🧬 Denature protein preparations (insulin, vaccines).

For control use:

• 🧪 Test strips for residual chlorine, HOUR or other active substances.
• 🔬 Portable photometers (in large healthcare facilities).

If residual concentrations exceed the norm, the refrigerator must be rinse again with distilled water and dried.

FAQ: Frequently asked questions about the treatment of refrigerators in health care facilities

❓ Is it possible to use household vinegar to treat a refrigerator in health care facilities?

No, vinegar does not provide the required level of disinfection and may damage the interior lining of the refrigerator. Only certified disinfectants with proven effectiveness against pathogenic microorganisms are allowed for medical institutions.

❓ How often should a refrigerator be processed if vaccines are stored in it?

Vaccine refrigerators are processed at least once every 2 weeks. In addition, a daily visual inspection and a monthly temperature check with a log entry are required.

❓ What to do if mold appears in the refrigerator?

If mold is detected:

1. Immediately remove all contents and place it in reserve refrigerator.
2. Treat with a disinfectant with a fungicidal effect (for example, Deochlor at a concentration of 0.2%).
3. Wipe the sealing rubber and drainage hole thoroughly.
4. After treatment, ventilate the refrigerator for at least 2 hours.
5. If mold reappears, call a specialist to check the tightness and ventilation.

❓ Do you need to treat the external surfaces of the refrigerator?

Yes, the external surfaces (especially the handles and control panel) are processed daily. To do this, use napkins soaked in a disinfectant solution (for example, Sterillium). This is due to the high risk of transmitting infections through contact surfaces.

❓ What documents need to be completed after processing the refrigerator?

After disinfection the following are drawn up:

• 📝 Refrigeration equipment processing log (date, product used, full name of the person responsible persons).
• 📊 Microbiological control protocol (if bacterial culture was carried out).
• 🌡️ Entry in the temperature log regime (for vaccine refrigerators).

Documents are stored for at least 1 year and are provided upon request Rospotrebnadzor.