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Forum topic by Don Newton posted 08-22-2009 08:59 PM 996 views 0 times favorited 7 replies Add to Favorites Watch
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Don Newton

714 posts in 3457 days

08-22-2009 08:59 PM

Topic tags/keywords: biscuits

Well Lumberjocks…..It appears as though my biscuits have swelled! Sounds painful but I can assure it is only annoying. I guess the plastic bag I had them stored in wasn’t good enough. I read somewhere that you can put them in a microwave to dry them out. Has anyone tried that, or have a better idea? How do you store yours?

-- Don, Pittsburgh

7 replies so far

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Dan'um Style

14171 posts in 3821 days

#1 posted 08-22-2009 09:06 PM

micro wave should work … also your oven and bbq

-- keeping myself entertained ... Humor and fun lubricate the brain

View FirehouseWoodworking's profile


701 posts in 3112 days

#2 posted 08-22-2009 09:21 PM

Either microwave or an over. I store my biscuits in clean peanut butter jars. They hold quite a bit and are air tight, which keeps the moisture out.

-- Dave; Lansing, Kansas

View a1Jim's profile


116585 posts in 3416 days

#3 posted 08-22-2009 09:23 PM

The oven and a little Jam MMMM

-- Custom furniture

View LesB's profile (online now)


1363 posts in 3281 days

#4 posted 08-22-2009 09:32 PM

When the biscuits are made they are compressed so they will expand in the joint. Moisture causes them to expand. Therefore they work best with water based CVA glues and not urethane or super glue.
Drying them out may help if they did not absorb too much moisture but it will not completely shrink them so make sure they fit in you slots before you use them and have a jam up.
I would buy a new batch and make sure they are stored in a moisture proof container. I use a large plastic jar with a tight fitting lid.

-- Les B, Oregon

View scrappy's profile


3506 posts in 3269 days

#5 posted 08-23-2009 03:54 AM

Here is a link on how to dry wood in the microwave.

Used it on some coasters about 3 months ago and they never cracked, so must have dried good.

-- Scrap Wood's the best...the projects are smaller, and so is the mess!

View LesB's profile (online now)


1363 posts in 3281 days

#6 posted 08-23-2009 09:04 PM

Microwave drying works great, I use it all the time to speed up the drying process when turning wet wood. In this case I think the biggest problem is that the factory process of making the biscuits intentionally compresses the wood so it will expand and firmly fill the slot when a moist glue is used. Therefore once biscuits have expanded from moisture, regardless of the source, it is all but impossible to re-compress them. On one occasion when it happened to me I just died them and sand them down a little to fit the slots; however that defeats the expansion process and could produce a weaker joint.

-- Les B, Oregon

View RBWoodworker's profile


441 posts in 3190 days

#7 posted 08-23-2009 09:16 PM

I had this happen to me and I simply took a hammer and gently tapped and flattened them was fast, quick and did the job fine.. I don’t have a microwave at my it was the only solution at the worked

-- Randall Child

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