1. The key depends on the ambient temperature. If the cultivation temperature is higher than the ambient temperature, a general incubator is sufficient. If the cultivation temperature is lower than the ambient temperature, a biochemical incubator must be used because it has a cooling function. For example, if the cultivation temperature of general mold and yeast is around 27 degrees, we can use a biochemical incubator.

2. Ordinary food companies do not use biochemical incubators, right?

3. It is usually used when doing biochemistry! What exactly do you want to test? If we only focus on bacteria and coliforms, a constant temperature incubator is usually sufficient!

Simply put, a biochemical incubator can replace a regular constant temperature incubator! It can cool or heat! However, a typical constant temperature incubator can only provide heating.

5. In summer, the temperature is usually around 30 degrees Celsius. If your location is consistently below 25 degrees Celsius, then ordinary incubators used by food companies are less likely to spoil than biochemical incubators.

The refrigeration function of the biochemical incubator I am using is broken. The cultivation temperature for mold and yeast is around 27 degrees, and the temperature accuracy requirement is not very high. The cultivation temperature is lower than the ambient temperature, so I use air conditioning to ensure the temperature.

7. The cultivation of mold and yeast requires the use of a constant temperature and humidity incubator.

How is the "constant humidity" of the biochemical incubator achieved. Our biochemical incubator does not have the function of "constant humidity". Is there a biochemical incubator that can maintain constant humidity?

9. Constant temperature is only a constant temperature within a certain range, which fluctuates within the set temperature range (such as 25 degrees, it will fluctuate between 24.5-25.5 degrees, of course, its fluctuation range is also adjusted by setting it to 1 degree, 2 degrees, or 0.5 degrees, etc.). The old-fashioned constant temperature incubator I used before was achieved by introducing tap water or constant temperature circulating water into the interlayer.

10. Constant humidity is possible, but it is not a biochemical chamber, but an artificial climate chamber. The specific principle is: 1. When the humidity is high, dehumidification is required, which is achieved through a compressor. 2. When drying, humidification is required, which can be achieved through an external household humidifier.

When conducting mold cultivation, due to the action of the compressor, the incubator will be relatively dry, which is not conducive to mold cultivation. You can place a beaker filled with water inside the incubator!

I am currently feeling down about this issue. We also use ordinary mold incubators for mold and yeast count checks, without humidity control. Do we know if they comply with regulatory requirements? The humidity inside the box is only 20%, but when actually cultured in a petri dish, there should be condensation inside for three days. Does this mean that the humidity inside is still above 90%, which meets the inspection requirements?

During mold cultivation, there is a lot of condensation in the culture dish, so it should not be very dry.

14. Is it possible to culture mold and total bacterial count in the same incubator? We cultivate molds in mold incubators.

I have been studying and using it, but I didn't expect there to be so much knowledge left. I need to observe more in the future. I thought the biochemical incubator was for biochemical experiments, haha

16. There are also differences in temperature control accuracy. Biochemical incubators require high precision, approximately plus or minus 0.1 degrees, while constant temperature incubators require plus or minus 1 degree!