Max. capacity
The largest volume of the container supplied with the kit. For sets (see "Type") in this case, the capacity of the largest container is indicated, for all other types — the actual nominal volume. Useful volume may be somewhat less, because. not all containers and not in all cases can be stuffed “under the very lid”. However, this difference is small, and this figure characterizes the capacity of the product well.
Estimating the amount of food that can fit inside, we can proceed from the fact that 1 liter of volume approximately corresponds to 1 – 1.2 kg of soup or a tightly packed product (for example, mashed potatoes) or 700 – 800 g of food, divided into pieces and not packed very tightly (for example, fried potatoes or salad). A large container takes up more space, and too little food can hang around inside, which usually does not contribute to safety. Therefore, too large a volume is just as undesirable as too small.
Min. temperature
The minimum temperature that a container can safely tolerate. Almost all modern food containers normally tolerate positive temperatures. So you should pay attention to this parameter only if the container is planned to be used for
deep freezing, or used in harsh winter conditions. However, the minimum temperature in domestic freezers is rarely below -24 °C, while for food containers it is -40 °C as a standard. On the other hand, it is worth noting that many models have no mention of a minimum temperature at all; it is necessary to use such products in the cold, taking into account the materials from which they are made (see above), and if possible, refrain from doing so altogether.
Max. temperature
The maximum temperature that the container can safely endure. Note that overheating the container can lead not only to its damage, but, in some cases, also to the release of harmful substances. Therefore, in no case should the claimed temperature be exceeded — even if the container remains intact, this does not mean that everything is fine.
The most delicate modern food containers have a maximum limit of 35 – 40 °C — this allows them to be used only for unheated food. Values of 70 °C are already found even among models compatible with microwave ovens, although for maximum guarantee it is desirable that the allowable temperature be at least 100 °C. And the most heat-resistant products (usually heat-resistant glass) can withstand temperatures up to 300 – 400 °C and can even be used for baking in the oven (although this heat resistance usually does not apply to lids, and they must be removed).
