Bad News About LED vs HPS

BobCajun said:
I tried freeze drying just in a closed container with dissicant, I think silica gel. Didn't dry at all. I guess it won't work if you pack a bunch in there. Few people can buy a commercial unit. You can do it in a container like that but it would have to be like a single layer on a screen or something. I made a vacuum with a wine bottle vacuum cork thing. Just search for wine vacuum pump or something like that if you want one. I drilled a cork sized hole in the container lid and stuck the cork in it and vacuumed it out. Made the lid suck right down. Guess you would need a more solid lid container. The lid sucking down reduced the volume inside a lot.
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Nothing you say makes any sense...this is far from freeze drying, where is the temp and pressure control?
 
boilingoil said:
And though calcium isn't toxic, it will cause other elements to become unavailable in high amounts.
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What you're describing is toxicity. Yeah, I know it's a technicality and know what you meant. I'm pretty sure what you meant is that calcium is toxic at high concentrations, just like all the other elements.

boilingoil said:
Try growing with a water supply with almost 300 ppm of CaCO3.
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This is a problem I have and I solve it by using nitric acid to convert the CaCO3 to Ca(NO3)2 and CO2. The problem in that case isn't the calcium (you can use less in your nutrients), but the carbonates.

Edit: I have no clue how this thread turned into a nutrients thread.
 
DankBudzzz said:
Nothing you say makes any sense...this is far from freeze drying, where is the temp and pressure control?
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They're known as the top part of a refrigerator and a wine vacuum cork pump. Costs considerably less than $3000. It works, look on fucking YouTube, where I got the idea. I just put too much in and used undried silica, or at least not dried enough I guess. calcium Chloride pellets would work better but it turns liquid as it absorbs water so gotta be careful how you position it.
 
BobCajun said:
They're known as the top part of a refrigerator and a wine vacuum cork pump. Costs considerably less than $3000. It works, look on fucking YouTube, where I got the idea. I just put too much in and used undried silica, or at least not dried enough I guess. calcium Chloride pellets would work better but it turns liquid as it absorbs water so gotta be careful how you position it.
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I don't need to look on YouTube as I have a degree in chemistry and work extensively in the field on a daily basis with this type of equipment.... what you describe lacks the precise control and magnitude of vacuum and temperatures required to freeze dry. You are simply dehydrating with the aid of dessicants and a shitty vacuum...nothing you do or say has any scientific merit.
 
boilingoil said:
I don't drink it. Learned that lesson many years ago after a bout with kidney stones in my family.
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Oxalates are what "supposedly" give you kidney / gallstones, Im curious about how calcium comes into play? Good stuff!

But spinach for instance is loaded, loaded with oxalates and I have never heard of a spinach free diet for stones [my pops just had one too.....]

Science is a crazy beeotch sometimes :)
 
DankBudzzz said:
I don't need to look on YouTube as I have a degree in chemistry and work extensively in the field on a daily basis with this type of equipment.... what you describe lacks the precise control and magnitude of vacuum and temperatures required to freeze dry. You are simply dehydrating with the aid of dessicants and a shitty vacuum...nothing you do or say has any scientific merit.
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Who knew YouTube wasn't a good source for DIY freeze frying information? Okay I'll just pull out 3 grand then.

 
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BobCajun said:
They're known as the top part of a refrigerator and a wine vacuum cork pump. Costs considerably less than $3000. It works, look on fucking YouTube, where I got the idea. I just put too much in and used undried silica, or at least not dried enough I guess. calcium Chloride pellets would work better but it turns liquid as it absorbs water so gotta be careful how you position it.
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Ok, as someone with over a decade of home brewing experience, there is no such thing as a "Wine Vacuum Cork Pump".

There are vacuum fillers for wine bottles (I own one) and Wine Filters (also own one), tons of corker varieties (lever, piston, floor, etc) and heat shrink machines for sealing the silly little bottle topper capsules...

But there's no vacuum pump for wine corks, nor any cork pump for wine vacuuming.

What you're talking about is a basic vacuum pump... but surprise! drying by vacuum evaporation (whether or not it is done at sub-zero temperatures) *still* isn't curing. Curing is an enzymatic process that cannot occur in the absence of water.

In fact, freezing the buds would further slow any residual enzymatic or bacterial activity you might have - that's basic biochem.
 
ZeroTrousers said:
Ok, as someone with over a decade of home brewing experience, there is no such thing as a "Wine Vacuum Cork Pump".

There are vacuum fillers for wine bottles (I own one) and Wine Filters (also own one), tons of corker varieties (lever, piston, floor, etc) and heat shrink machines for sealing the silly little bottle topper capsules...

But there's no vacuum pump for wine corks, nor any cork pump for wine vacuuming.

What you're talking about is a basic vacuum pump... but surprise! drying by vacuum evaporation (whether or not it is done at sub-zero temperatures) *still* isn't curing. Curing is an enzymatic process that cannot occur in the absence of water.

In fact, freezing the buds would further slow any residual enzymatic or bacterial activity you might have - that's basic biochem.
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I guess this doesn't exist then, and I guess that guy in the video wasn't using one. It was all a big deception to fool a master brewer.

vacuvin.jpg
 
I got a chance to see what that Rapitest light meter showed in the sun, was cloudy until now. In full midday sun it reads 9, in the shade it reads 8, so not much range there. What a piece of crud.
 
CobKits said:
i saw some vacuum pumps on alibaba, you think this one would work to dry bud?

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Yes, that would work well for those with undersized buds. You'd be surprided how strong a vacuum the wine pump can produce though, suck a thick container lid right down, good thing the container itself was solid Tritan. You would need the kind of container that is all solid, including the lid, like the one shown in the video, which are available at Walmart btw.
 
The 1/2 minus green filter proved to be too dimming for my liking. Growth seemed slow, just had a feeling it wasn't working out. So I replaced it with a 1/8 minus green, looks a lot better. First I was gonna use no filter but it really seemed too hot. Adding the filter brought it down to a better level.

Also, no bad effects from the 13.5 hour light cycle I started using a while ago. No reveging or getting loose or anything, just kept putting out new flowers while earliers one were browning, Blue Pyramid strain. Good amount of resin developing. I did just drop it down to 13 to aid ripening though, for the final week. I don't see any reason to go to 12 though. Why starve your plants? From what I've read on photoperiodism, there's no benefit in using fewer hours than the critical day length, which in Cannabis is apparently somewhere beyond 13.5 hours.

Well certain plants like Chrysanthemums will flower at their critical but to develop proper full size flowers it has to be about 10 hours, much shorter than critical. But that's a qualitative short day plant whereas Cannabis is an obligate short day plant, no separate flower initiation and flower development critical day lengths.
 
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