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How to avoid
1. Clean the mould with paper soaked in ethanol just before its use.
2. If you need ready moulds, clean them with paper soaked in ethanol, and cover them putting the
relative chucks. The chuck will avoid the formation of frost inside the mould, until its use.
3. Do not use the embedding medium at a temperature above 25°C.
4. Prefer the use of 5mm deep moulds to deeper ones.
E.4. Difficulty in unscrewing moulds
If some medium goes under the mould, it acts as a glue between the mould and the PrestoCHILL working
area and makes difficult to unscrew the mould for cleaning procedures.
Solution
Start a defrost program in order to heat the medium under the mould.
Vertically hit the mould with heat extractor, in order to break the links between mould and plate.
Unscrew the mould.
How to avoid
1. Avoid to put too much medium inside the mould, otherwise it goes under the mould.
2. Clean the PrestoCHILL working area before to start a defrost program.
3. Remove the medium pieces, if present, from it.
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