PETG to -18°C ?

[Nigel Crompton]

Were I to need to print something to withstand domestic freezer temperatures would PET-G do, or will I need something more esoteric ?

It's essentially a mould in which to freeze home-made "ready meals" to subsequently re-heat (sans mould!) in the camper's air-fryer. After freezing the food would be released from the mould and bagged for storage.

(Searching G. for "PET-G" & "temperature" produces the predicable, nozzle related results)

 

[olley]

Not recommended below -40c

 

[Nigel Crompton]

Ah, that'll 'do' then; another argument to put to the Accountant ...

 

[Guigsy]

You need to consider whether the material will flex enough at -18C to deal with ice expansion. And if it's food safe.

 

[Nigel Crompton]

You need to consider whether the material will flex enough

Good point ..

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[PaulandChrissy]

PET-G is food safe, but, it will probably crack at -20c. Try it. What can you loose.
Might try it myself actually.
Making a box now to fill with water and putting it in the freezer.

 

[Nigel Crompton]

Making a box now to fill with water and putting it in the freezer.

Attaboy, I don't have the facilities (yet ... )

 

[PaulandChrissy]

Attaboy, I don't have the facilities (yet ... )

Just put a small container in the freezer full of water as a first test. If it survives, I’ll make a bigger one.

 

[Guigsy]

Put the food (or test water) in a freezer bag first. Before you put it in the mold. Then you don't have to worry about safety, leaks, or cracks.

 

[Nigel Crompton]

Put the food (or test water) in a freezer bag first. Before you put it in the mold. Then you don't have to worry about safety, leaks, or cracks.

Good idea, but it'll not work for a Shepherd's Pie or Lasagne ...

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