1st-line Sonny On Demand Stepped Doserless Espresso Coffee Grinder

4.3333333333333 out of 5 based on 3 customer ratings
(3 customer reviews )

From: $379.00

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1st-line “Sonny” On Demand Stepped Doserless Espresso Coffee Grinder

The smallest of 1st-line’s series of entry-level espresso coffee grinders, the ‘Sonny’ is a heavyweight champ for the home barista. Available in black or chrome, it’s a perfectly sized grinder for any stainless steel espresso machine. The black version matches the black handles and knobs on most stainless steel espresso machines. The chrome version matches polished stainless steel superbly.

The ‘Sonny’ grinder can be used manually by pressing the portafilter firmly against the switch (for 2 seconds or more) just above and behind the forks and holding it until the desired amount of ground espresso coffee is dispensed. Or, the Sonny grinder can be programmed for either a single or double dose (only one of the two) whereby the built in programmable timer will stop the grinding when the programmed time is reached. Need a little more ground coffee in the portafilter? No sweat! Just hold the portafilter for 2 seconds or more for a little more ground coffee.

Inside of the chute of our Sonny espresso coffee grinder, there is a clump breaker that does a pretty good job! However, when taking it down to almost Turkish grind, there is some clumping. We found there is only about this ~3 grams of retention in the chute. Not bad for a well built espresso grinder!

The stepped adjustment makes it super easy to get back to the fineness setting desired, and the bean hopper is easily removable or can be secured to the adjustment dial with two included screws.

Cleaning is easy by putting in some UrnexGrindz in Sonny!


Grinding adjustment

  • Stepped – Adjustment dial is located underneath the hopper. The entire dial is numbered so you can remember your current grind setting easier. Turn clockwise for a finer grind and counterclockwise for a coarser grind.
  • Setting lock – A setting lock button keeps your current setting. Prevents users from accidentally altering it and spending time to find your correct setting again.

Grinding burrs

  • Flat burrs – Sized at 50 mm. Not as noisy as other grinders around this price level.
  • High rpm – Faster spinning rate at 1400 rpm. The higher the speed, the faster the production, which can increase efficiency and reduce wait times.

On demand grinding

  • Easy operation – Below the coffee chute is the grinding button. Simply press the button and the grinding automatically starts and stops at the set time.
  • Timer controls – In the back of the grinder, there is a screw that adjusts the on demand grinding time. Using a flat head screwdriver, turn the screw clockwise to increase time and counterclockwise to decrease time.
  • Semi-automatic control – Holding the grinding button for 2 seconds will activate semi-automatic grinding. Once you have enough grinds, release the button to stop grinding.

Bean hopper

  • Low profile – We include the short hopper in your purchase of the Sonny grinder. The overall height in under 16″ which will easily fit and operate under standard 18″ cabinets.
  • Tinted – Helps to avoid pre-mature deterioration of beans from light sources (such as sunlight).
  • Finger guard – Prevents users from “accidentally” putting their fingers in the grinding burrs. The finger guard is removable.
  • Set screws – There are 2 screws that come with the grinder. These screw into holes underneath the finger guard. This helps secure the hopper to the grinder. Prevents users from quickly removing the hopper, spilling beans everywhere.

Grinds catch tray

  • Small size – The tray has a 1/4″ depth. This will be able to catch and hold a lot of grinds.
  • Removable – The tray sits on a platform with a hole that it locks onto. This keeps the tray from sliding away from the grinder. Easy to install or remove.

Additional information



Height (inches)

15.5, approximate

Width (inches)

6.5, approximate

Depth (inches)

11, approximate

Weight (pounds)


Wattage (watts)


Voltage (volts)

110 – 120

Burr size (mm), Type

50, flat

Grinding speed (RPM)


Hopper capacity (grams)


Country of manufacture




  1. Changing grind settings: As with all coffee grinders, it is very important to only change grind settings when the unit is powered ‘on’ and the burrs are in motion. If you do not do this, the burrs will ‘gunk’ up and require cleaning by you every time this occurs. Changing the grind settings when the burrs are not in motion will render the grinder to only produce very coarse grinds or no grinds at all. If this result occurs, this will be considered operator error for lack of following directions, and not be classified as a defective grinder.
  2. Finding coffee grinds in a new grinder: We have confirmed that the manufacturer tests EVERY grinder with coffee beans before it leaves their facility, but they are not always able to get every trace of coffee out of the grinders after testing. As a result, you may find coffee beans or grinds inside your grinder, or there may be grinds in the packaging when you unwrap it.
  3. Static issues: There are static issues with all grinders, even the highest quality models. We firmly believe that the static comes from the coffee beans. If you are having static problems with your coffee grinder, trying using a different blend of beans.
  4. Replacing burrs: NEVER use a flat head screwdriver and hammer to wedge under the burrs for removal. This could badly damage your grinder.
  5. Electrical cord: Please note that the electrical cord is placed between the packaging (foam or cardboard) and the underside body of the grinder. During shipping, it is normal for a bend or insignificant blemish / slice to damage the cord.

Espresso Grinder Warning

  • CLEANING WARNING: We recommend using grinder cleaning agents. We do not recommend any removal of the burrs or burr carrier for cleaning as re-assembly can cause damage.
  • ELECTRICAL WARNING: To avoid electrical damage to this espresso grinder which is not considered a manufacturer's defect, please acquire and install a single-outlet surge suppressor rated at 1080 joules or higher. The lack of the recommended surge suppressor, the espresso grinder can be damaged at the power switch, the capacitor, the motor, or the wiring.

Please use the diagrams below to help find the exact part you are looking for. After you find the part, copy the SKU #. Then use the search bar at the top of our website. If there are no results in the search, we most likely do not have the part. We only special order parts if the specific model was purchased through 1st-line Equipment. For general questions, please use our parts inquiry page.


Customer reviews

Rated 4.3333333333333 out of 5 stars
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3 reviews for 1st-line Sonny On Demand Stepped Doserless Espresso Coffee Grinder

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      1. 0 votes
        Answered by the admin

        Sorry, it is not that easy. Unplug the unit. The three screws on the front panel need to be removed. Then the 2 front bolts on the guides need to be removed. The bolt needs to be slid off through the back of the front panel. Then a shorter replacement bolt needs to be placed in to avoid coffee grinds getting in through the 2 small holes. We are not responsible for any damage nor personal injury.

      2. 0 votes
        Q I need the parts diagram answer now
        Asked by Larry Delgado on January 27, 2020 5:03 pm
        Answered by the admin

        Sorry, this is currently being worked on.

        Answered by the admin


        Here is a link to the parts diagram:


      3. 0 votes
        Answered by the admin

        We prefer to not use the timer. The reason is that every time you change the grind setting, the timer needs to be adjusted.

        It is possible that our manufacturer put on the wrong stickers. We will double check.

        Clumping comes from grinding the beans too fine and the design of the grinder. Too many customers grind too fine because they put too little coffee in the filter basket. Thus a finer grind is needed to have the proper extraction. However, we have noticed it is better to fill the 2 cup basket level to the rim, then tamp, then make grinder fineness adjustments based on the extraction results.

        Please read our articles getting started...

      4. 0 votes
        Q Hello; How many milling adjustments have. answer now
        Asked by Fernando on November 3, 2018 12:54 am
        Answered by the admin

        Currently, there are 40+ settings. Typically, only a range of 10 settings are used for espresso. This grinder is considered for only espresso grinding.

      5. 0 votes
        Answered by the admin

        Funny that you asked! We just loaded our showroom model with most oily beans we could find!

        The 'Sonny' was grinding some lightly roasted beans up until this past Monday, and this required a very fine grind because the oils were not at the beans' surface. When we placed in the oily beans on Monday, the grind fineness was too fine and choked the espresso machine which was pumping up to 11 bar. We had to coarsen the grind on the oily coffee beans because the oils are already at the surface.

        So far, the bean hopper chute has not stopped the gravity feed of the oily beans.

      6. 0 votes
        Answered by the admin

        Hi Mike. We just tested a Ponte Vecchio portafilter with the Sonny grinder we have in our showroom. The coffee chute extends a little past the portafilter rim.  When you initially grind, the coffee seems to stay inside the basket. However once the basket starts to fill, it then starts to spill outside the basket.

      7. 0 votes
        Q What the DB sound level of this grinder? answer now
        Asked by Mike on August 12, 2018 6:30 pm
        Answered by the admin

        Immediately at the chute, the decibel reading ranges from 85-88. Approximately 3 feet away, the range in decibel reading was 65-68. Please note each different tool may read differently, and different readings can occur from different environments.

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