Using Polypropylene Sacks when pressing

[Andy Andy]

Hello all,

It is ok to use white polypropylene sacks/bag when pressing instead of cheese cloth?

Thanks.

[Bartek Knapek]

I do not think the exact material matters so much, Polypropylene,
Polyamid, etc. - it is the fabric density that matters. It was a major
improvement for me when I switched from a rather loose Ikea net courtain
to a rather dense Polyamid cloth - the amount of lees reduced greatly.
//Bartek

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[Andy Andy]

This is an example for one filled with water.

https://youtu.be/9yD3ARbwOmM
I think is the same thing with the ones in Toolstation:

https://www.toolstation.com/woven-rubble-sack/p46871

Even if those are for Rubble I still think are food safe, if anyone knows more please comment.

[Bartek Knapek]

 

 

It seems to watertight for me. You need one that lets water run rather freely, otherwise you may not be able to press your pomace dry - it will clog with fruit particles under pressure.

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[Andy Andy]

I don't know what he's saying, but that looks like a pp sack to me.

https://youtu.be/8ERElX1Atws

I only issue that I see is maybe microscopical particles of pp ending in the juice, but in the end any press sacks has plastic fibers.

[Ray Blockley]

Certainly looks like a PP sack in the video but of course there's PP sacks & there's PP sacks... 

The one in the video may be a specific weave to suit that press, of course. 

The only way to be sure is to do the experiment.   

Ray
Nottm UK

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[Andy Andy]

Hi Ray,

I will test it.

But I was very interested to see the view of the community on using PP. As I've said PP is the safest plastics but this because is woven maybe has some tiny particles.

Regards.

[3Sons Cider]

I used shade cloth for years as as the material for the cheeses. It is super strong, enough mesh hole space for juice to extract easily and was super easy to clean and re-use.  Could be stanised easily enough too.

[Andy Andy]

I assume is polyethylene.

[Max Marshall]

does it cut easily without fraying and degrading?

[3Sons Cider]

yep - I just used sharp scissors.  No fraying at all and no degradation of the cloth itself from what I could tell.  I certainly wasn't getting bits in the strainer when I poured the juice into the fermenters. The original press I had I kept the clothes for around four years and they were stored cleaned and neatly folder after being dried with the press in a storage bag to keep dust off them.  I didn't have any hassles using them at all.