Like this:

 

 

I don't actually want to brew beer!  It's for a bell jar/sound energy experiment for my students. You place an electric bell/buzzer inside the jar and then suck out the air with a small pump.  The sound of the bell will get weaker, since sound energy needs 'matter' to travel through.

 

I think the mouth of a jar like this will be enough for me to insert a small buzzer/battery ????

Edited April 20, 20224 yr by simon43

https://thaibrewshop.co/product/5-gallon-glass-carboy

 

Smaller vols are cheaper

Be careful of an implosion.   

2 minutes ago, Elkski said:

Be careful of an implosion.   

I'm not intending to mimic a vacuum in outer space :).  Just remove enough air to noticeably reduce the buzzer sound.  I've done this experiment using these types of glass bottles many times in the UK. But your warning is noted!

Absolutely zero response from the Thai Brew Shop........

Thanks to @JoePai we now know the name of those glass jugs are carboys.  A few larger ones available on Lazada;

 

https://www.lazada.co.th/products/carboy-glass-jug-1-38-i2449429799-s8551361007.html?search=1&spm=a2o4m.searchlist.list.i40.84187d86vvpftF