Can I reheat cloudy syrup and refilter?

[Cindee]

Yesterday while canning my syrup in pint jars the first half went well, clear syrup. My husband came in and gave me an update at the evaporator and my temp jumped to 205. Could this have been my problem because only the last 4 pints are cloudy. Can I open the jars and reheat with my next batch including re-filtering?

[happy thoughts]

yes, you can reheat and refilter. Also likely that the temp you reached caused more niter to form. Try to keep it under 195*F after filtering.

[maple flats]

Yes but it may go slightly darker. I like to filter at 210 +/- 5 and I bottle at 185-190. No new niter forms that way.

[Cindee]

I picked up new prefilters yesterday. what temperature should I re-heat the syrup to before re-filtering.

[Asthepotthickens]

I picked up new prefilters yesterday. what temperature should I re-heat the syrup to before re-filtering.

200 to 210

[Cindee]

wouldn't that cause more niter or crystals? I always bottle at approx. 190 and everything was fine with the other bottles from that batch until I got distracted and my temp. went to 205 and then instant cloudiness.

[red maples]

you already have the niter in there heat it to 200 by the time it goes through the filter it will cool very quickly especially if it's a relatively small amount.

[Big_Eddy]

Bring it to a boil and pour it into the filter. Any niter that forms will be caught in the filter and the output will be be clear.
Heating AFTER filtering is what causes cloudy syrup. Heating prior to filtering is not an issue.

(Don't keep it at a boil or the density will increase)

[maple flats]

It must be heated well above the bottling temperature to end up with clear syrup. This heating does form more niter, but filtering removes it. Then canning at the lower temp (but never below 180, preferably 185-190) does not form new niter, because you have remover all the excess from when it was far higher temp. The niter is basically the minerals that precipitate out of the super saturated syrup. At the bottling temperature you then have a several degree safety net.

[PerryW]

I reheat & standardize the density of my syrup in batches of 5-10 gallons at a time. I bring it up to about 196 degrees and run the whole batch thru my filter-canner at once. (I use a regular felt filter without a prefilter). I wrap a double-thick towel around the unit (to hold in the heat) and have a dial thermometer on the canner unit. I is usually about 192-194 degrees in the filter unit when I begin filling jugs. When the temp hits 185, I stop filling jugs and put the remaining syrup in the next batch or store in the fridge. (I just finished canning 30 gallons)