Oster BVSTEM7300 Instruction Manual page 71

TROUBLESHOOTING GUIDE - ESPRESSO MACHINE
PROBLEM
Espresso pours out
in drips
(Over Extracted)
Espresso does not
have any crema, or
crema is thin
(Under Extracted)
Espresso shot
volume too much or
too little
Espresso pours into
cup unevenly
Espresso tastes
bitter
Espresso is too
cold
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Possible Cause
Coffee grinds are too fine.
Too many coffee grinds used.
Coffee grinds tamped too hard.
Espresso Machine has scale
build up.
Coffee beans are old or dry.
Coffee grinds too coarse.
Not enough coffee grinds used.
Grinds not tamped (compacted)
enough.
Custom shot volumes
being used.
Uneven tamping.
Obstruction in the Group Head
or Handle.
Type of coffee beans being used.
Custom extraction temperature
being used.
Steam function has been used
just before extracting espresso.
Coffee beans being stored in
the fridge or freezer.
Custom extraction temperature
being used.
Cup or glass was cold prior to
espresso pour.
Group Head or Handle not
warmed before use.
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What To Do
Change to a coarser Grind Setting.
Dose less coffee grinds.
Apply less force during tamping.
A Descaling Cycle is required.
See Descaling Cycle, pages 29-30.
Use freshly roasted coffee beans.
See Tips for Grinding, page 13.
Change to a finer Grind Setting.
Dose more coffee grinds.
Tamp more firmly. See Espresso
Extraction Guide section, page 14.
Restore to default shot volumes or
change your custom shot volume(s).
See Customizable - Shot Volumes,
page 21.
Ensure coffee grinds are tamped evenly.
Check there is nothing obstructing the
Group Head or Handle & clean.
Try different brands of coffee beans.
Use the default 92°C extraction
temperature. See Customisable -
Extraction Temperature, page 21.
Allow time for water to purge the
Thermoblock and cool down before
extracting espresso. The STEAM
LIGHT should have finished
Store coffee beans in a dry, airtight
container. Place in a cool dark cupboard.
Use the default 92°C extraction
temperature. See Customisable -
Extraction Temperature, page 21.
Pour hot water from the Steam Wand into
the cup before extracting espresso. See
Coffee Making Guide, page 11.
Hold the Group Handle under the
Group Head and press the ONE CUP
BUTTON. Allow water to run through.
See Coffee Making Guide, page 10.
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6/26/19 09:34