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LEADER HALF PINT EVAPORATOR 

 

LEADER Half Pint Evaporator 

Year:  2014 

Page:  18 

 

NOTE:  To correctly determine the Brix/Baume, you need to read from the line of 
the syrup. 

LEADER EVAPORATOR Hydrometers:  Hydrometers from LEADER EVAPORATOR 
are calibrated by the State of Vermont at two temperatures; 60°F Cold Test 
(66.9°Brix/36°Baume) and 211°F Hot Test (59.1°Brix/32.1°Baume).  After 
numerous measurements it was determined 211°F is the average temperature of 
syrup when measured immediately after draw-off from the evaporator.  When 
checking syrup at 211°F, the syrup is at the proper concentration when the 
reading line is at the Hot Test line.  If the Hot Test Line is below the reading line 
of the liquid, continue to boil as the syrup is “light”.  If the Hot Test Line is above 
the reading line of the liquid, the syrup is “heavy” and will need to be diluted 
with sap. 

 
 
 

TEMPERATURE 

°F 

Degrees 

Baume 

Degrees 

Brix 

209 

32.0 

59.0 

202 

32.25 

59.6 

193 

32.5 

60.0 

185 

32.75 

60.4 

176 

33.0 

60.9 

167 

33.25 

61.4 

158 

33.5 

61.8 

149 

33.75 

62.3 

140 

34.0 

62.8 

130 

34.25 

63.3 

120 

34.5 

63.8 

110 

34.75 

64.3 

100 

35.0 

64.8 

90 

35.25 

65.4 

Summary of Contents for Half Pint

Page 1: ...Leader Evaporator Co Inc 49 Jonergin Drive Swanton Vermont 05488 802 868 5444 www leaderevaporator com Leader Half Pint Evaporator...

Page 2: ...ING AND INSULATING 8 POSITIONING 8 BRICKING 8 SETTING THE PANS 11 INSTALLING THE DRAW OFF VALVES 11 First Boil 12 OPERATION OF THE HALF PINT EVAPORATOR 13 THEORY OF OPERATION 13 GRADIENT 13 MAKING SYR...

Page 3: ...ll become syrup and another small batch is drawn off Sap is boiled only long enough to make syrup By limiting the time heating and reheating the sap the caramelizing of the sugars will be reduced Redu...

Page 4: ...IPTION PHOTO Front 1 Back 1 Left 1 Right 1 Bottom 1 G Grate Rail 2 Draft Latch Bolt and Nut 10 24X 1 1 Draft Latch 1 I Corner Bracket 2 J Corner Bracket 2 J 3 Holed Steel Legs 4 H Grate Assembly 1 Mac...

Page 5: ...e Half Pint Evaporator The following parts can be ordered as a kit Order 302435 of individually as listed Fire Brick Full qty 32 65003 Fire Brick qty 63 65006 Rail Gasket X 2 x 25 roll 65154 Refractor...

Page 6: ...holes are only in the bottom flange b Flanges on the bottom of the sides are mounted under bottom panel c Mount bolts in only the two middle holes of each side 2 Raise and support the arch up approxi...

Page 7: ...ets with 20X bolts and matching nuts with the bolt heads on the outside of the arch a Bracket I to the front right and the back left b Bracket J to the front left and the back right Brackets must be i...

Page 8: ...ould be rated for 3000 F To apply cement completely skim coat the metal of the arch where the brick is to be installed Put about 1 8 on each edge of the brick to be installed and a skim coat on the si...

Page 9: ...the arch as illustrated Remember to coat the edges of the bricks with approximately 1 8 of refractory cement 5 The end bricks of the bottom row should slide behind the bottom end full bricks on each...

Page 10: ...the bolts If the bricks still do not fit trim the length of the brick 7 The first row of bricks toward the arch front should be up against the bolts in the side of the arch FRONT 1 You will need 2 fu...

Page 11: ...n tape 4 Screw the supplied brass lead free ball valve onto one end of the stainless steel nipple The assembly is referred to as the reservoir pan faucet INSTALLING THE DRAW OFF VALVES It is recommend...

Page 12: ...first boil is done to remove any residual materials from the pans and to season the bricking and insulation 1 Prepare 15 gallons of a baking soda and water mix in proportion as follows a 1 1 4 ounce o...

Page 13: ...orator so the less concentrated liquid sap will push its way toward the more concentrated liquid In an evaporator you will be concentrating the percent of sugar from the incoming sap approximately 2 t...

Page 14: ...ood When Fire consistently with small amounts of wood to maintain the level of heat Use a timer to stay on schedule for the firings 6 to 10 minutes depending on wood quality size and desired intensity...

Page 15: ...t Therefore the following is the recommended method for determining the draw off temperature a The sap will turn an amber or darker amber color b The temperature of the sap will reach 7 0 to 7 5o F ab...

Page 16: ...2 Empty the reservoir pan into a container 3 Turn the reservoir pan 180 and move to 6 from the rear of the boiling pan 4 Refill the reservoir pan level to 2 3 to 5 Fill the boiling pan to the operati...

Page 17: ...FOR USE 1 Unpack the hydrometer from its tube or box 2 Carefully inspect the hydrometer for any breakage If you suspect any cracks fill your test cup with hot water and immerse the hydrometer If it le...

Page 18: ...yrup when measured immediately after draw off from the evaporator When checking syrup at 211 F the syrup is at the proper concentration when the reading line is at the Hot Test line If the Hot Test Li...

Page 19: ...table the syrup is light and will need to be boiled more 8 After reading the hydrometer remove it from the test cup and rinse it with either hot water or hot sap to ensure it is clean Dump the conten...

Page 20: ...otective gloves brush the loose scale f If scale is removed flush the pan with unsoftened non chlorinated well or spring water If the scale is thick you may need to continue soaking the solution in th...

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