Now that i see there is some intrigue i will post my tek.
first, you want all mesh bubble bags. They arefar superior and cost the Same.
make sure your trim is frozen good. If there are buds in there, break them up while you are starting.Use a clean 5 gal bucket and mix in ice cold water and your trim. Only adda handful of ice. You only want to use the i e to make sureyour water is cold enough not to melt it. Seriously. No extra ice. The best place to do this is in a walk in cooler or outside in winter. So use a spatula to mix your trim and ice water for about 5 mins. I usually do about 3-4 runs with this on the trim. Use circular smooth motions. You want centrifugal force to rip the trichomes off.You dont want to break them off. I like a silicone spatula. After mixing, poor it into a bucket lined with a 220, 120 or 160, 73, and a 25 bag. If your plants were mature almost everything will be in the 73 bag but if not a lot will be in the 25 too. Now when you are collecting your bubble it will be waaaay sticker than any bubble you have ever handled so be careful. Spoon it directly onto double layered parchment paper. It will stick like wax to anything else you put it on. Now you will still have some water pooled with your hash so take your parchment covered in bubble and put it in the fridge, open to the air. This is where the pros would freezedry it but i find leaving it openin the fridge over night on several layers of parchment usually does it. By about 24 hours, enough water has been removed that you can press it. use parchment to roll it into a shape that will fit into your press bag (i do a tootsie roll shape) and put it into the freezer to harden. After its hard it is less sticky and can be quickly dropped into the open mouth of your press bag. Fold the end of the bag over and put it the opposite way into another bag. I recommend press club brand 25 micron press bags. Now if you dont have experience pressing rosin, practice with bud first. It is VERY difficult to press full melt bubble into rosin without getting a blowout. Use a temperature of 165-180 and add pressure a TINY bit at a time. The whole press should take several minutefor it to ooze out. You dont want to force it. I usually dont do a full pressure press on the first go. I fold the puck and repress. After you collect your rosin it will likely still have a tiny bit of water in it. If you want to preserve the most terps, flatten it out on parchment andput it open air in the fridge like with the bubble. Or you can warm cure it in a jar for a more buttery consistency.Either way thats how i make hash these days. Cheers