FprEN 50730

SLOVENSKI STANDARD
01-januar-2024
Profesionalni in komercialni kavni aparati - Metode za merjenje porabe energije in
produktivnosti
Professional and commercial coffee machines - Methods for measuring energy
consumption and productivity
Professionelle und gewerbliche Kaffeemaschinen - Messmethoden für Energieverbrauch
und Produktivität
Machines à café professionnelles et commerciales - Méthodes pour mesurer la
consommation énergétique et la productivité
Ta slovenski standard je istoveten z: prEN 50730
ICS:
97.040.50 Majhni gospodinjski aparati Small kitchen appliances
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD DRAFT
prEN 50730
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2023
ICS 97.040.50 -
English Version
Professional and commercial coffee machines - Methods for
measuring energy consumption and productivity
Machines à café professionnelles et commerciales - Professionelle und gewerbliche Kaffeemaschinen -
Méthodes pour mesurer la consommation énergétique et la Messmethoden für Energieverbrauch und Produktivität
productivité
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2024-01-26.

It has been drawn up by CLC/TC 59X.

If this draft becomes a European Standard, CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CENELEC in three official versions (English, French, German).
A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to
the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 61373 Ref. No. prEN 50730 E

prEN 50730:2023 (E)
Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 6
3 Terms and definitions . 6
Figure 1 — Delivery cycle 6-2-20 . 8
Figure 2 — delivery cycle 11-2-20 . 8
Figure 3 - delivery cycle 21-2-20. 9
Figure 4 — delivery control cycle 16-2-20 . 9
4 Requirements .11
4.1 General .11
Table 1 — Nominal values for ground coffee as an ingredient .11
Table 2 — Verification of quantity of ground coffee .11
4.2 Beverage temperature, quantity and delivery time .11
Table 3 — Quantity ranges .12
5 Testing .15
5.1 General .15
5.2 Testing conditions .15
5.3 Testing procedure .22
Table 18 — minimum clock time for 2 × espresso and café crème .39
6 Calculations .42
6.1 General .42
6.2 Ready machine energy .42
6.3 Energy per cup .43
Table 19 — values for c .44
m
6.4 Energy in energy saving mode .44
6.5 Productivity calculations .45
prEN 50730:2023 (E)
Annex A (normative) Conditions of use of measurements and calculations from this standard. 46
Table A.1 — Condition of use of data . 47
Annex B (informative) Example of test reports . 48
Table B.1 — Example of energy consumption report . 48
Table B.2 — Example of report on energy consumption . 49
Table B.3 — Example of report on energy per cup calculations . 49
Table B.4 — Example of report on productivity . 49
Annex C (normative) Information to be provided by the manufacturer to the laboratory . 51

prEN 50730:2023 (E)
European foreword
This document prEN 50730 has been prepared by CLC/TC 59X “Performance of household and similar
electrical appliances”.
This document is currently submitted to the Enquiry.
The following dates are proposed:
• latest date by which the existence of this (doa) dor + 6 months
document has to be announced at national
level
• latest date by which this document has to be (dop) dor + 12 months
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) dor + 36 months
conflicting with this document have to be (to be confirmed or
withdrawn modified when voting)
prEN 50730:2023 (E)
1 Scope
This document applies to professional and commercial coffee machines used for example in kitchens and food
preparation areas in restaurants, canteens, hotels, coffee shops, breakfast rooms.
This document does not apply to:
— household appliances;
— machines that use only coffee pods or coffee capsules;
— machines powered by non-electrical energy (i.e. gas);
— milk refrigerators integrated or not into traditional machines. Accessory equipment provided together with
the machine (e.g. cup warmer, milk refrigerator) is physically separated from the machine.
This document defines methodologies to measure the energy consumption and productivity of coffee machines
based on their characteristics.

prEN 50730:2023 (E)
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references, the
latest edition of the referenced document (including any amendments) applies.
ISO 7056:1981, Plastics laboratory ware — Beakers
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• ISO Online browsing platform: available at https://www.iso.org/obp
• IEC Electropedia: available at https://www.electropedia.org/
3.1 Coffee machine types
3.1.1
fully automatic machines
coffee machines in which the preparation of the coffee starting from the ingredients up to the delivered beverage
is fully controlled by the machine based on the input of the user
Note 1 to entry: The user typically places a cup underneath and presses a button, the machine does the rest.
3.1.2
traditional machines
coffee machines in which the preparation of coffee requires pressurized hot water to pass through grinded
coffee by one or more interventions of the user in process of preparation and delivery of coffee
EXAMPLES For intervention of the user the examples are manually filling of grinded coffee in the portafilter and manually
emptying after the dispensing of the coffee,
Note 1 to entry: The user prepares coffee (properly grounded), put it into portafilter and mounts the portafilter on the coffee
machine, then presses the button.
3.1.3
cold machine
switched off machine, mounted inside the testing chamber, left at testing conditions for a time of 16h 00’ ± 10
min from the end of a heating phase of the machine, all groups on, that lasted at least 1h
3.2
end of beverage delivery
time when the continuous flow of the delivery of the liquid beverage stops
Note 1 to entry: This is not the last drop of beverage delivered.
Note 2 to entry: This is not applicable in case of steam wand hot milk.
3.3
delivery time
time from when the command to deliver a beverage is given to the machine to the end of beverage delivery
EXAMPLE For command to deliver a beverage: press a button, activate of a lever.
Note 1 to entry: The delivery time ends when the continuous flow stops, not the last drop, see definition 3.2.
prEN 50730:2023 (E)
3.5 Milk
3.5.1
cold milk
UHT cow liquid milk with a level of fat of 2,5 % to 4 %, a temperature of 5 °C ± 2 °C
Note 1 to entry: UHT means Ultra High Temperature.
3.5.2
direct hot milk
milk delivered by coffee machine by heating up cold milk
Note1 to entry: Milk is heated up by steam or by heat exchanger inside the machine.
3.5.3
steam wand hot milk
milk heated up by steam from steam wand inserted into a beaker of cold milk
Note1 to entry: In some machines the control of steam from steam wand is automatic, in other machines it is a manual one.
3.6 Buffer times and delivery cycles
3.6.1
short buffer time
SBT
2 min between the starting of one delivery and the starting of the next one within the same cycle
3.6.2
medium buffer time
MBT
20 min between the starting of the last delivery of one cycle and the starting of the first delivery of the next cycle
3.6.3
long buffer time
LBT
60 min between the starting of the last delivery of one activity and the starting of the first delivery of the next
activity
3.6.4
delivery cycle 6-2-20
cycle of 6 deliveries of a beverage, the next delivery starting after 2 min from the start of the previous one, where
the cycle ends 20 min after the start of the last delivery
Note 1 to entry: See Figure 1 where each dot identifies the start of each delivery.
Note 2 to entry: Only one type of beverage is delivered within the same cycle.
prEN 50730:2023 (E)
Key
D1, D2, D3, D4, D5, D6 first delivery, second delivery, third delivery, fourth delivery, fifth delivery, sixth delivery
SBT 1, SBT 2, SBT 3, short buffer time 1, short buffer time 2, short buffer time 3,short buffer time 4,
SBT 4, SBT 5 short buffer time 5
MBT medium buffer time
Figure 1 — Delivery cycle 6-2-20
3.6.5
delivery cycle 11-2-20
cycle of 11 deliveries of a beverage, the next delivery starting after 2 min from the start of the previous one,
where the cycle ends 20 min after the start of the last delivery
Note 1 to entry: See Figure 2 where each dot identifies the start of each delivery.
Note 2 to entry: Only one type of beverage is delivered within the same cycle.

Key
D1, … D11 first delivery, …., eleventh delivery
SBT 1, …. SBT 10 short buffer time 1, … short buffer time 10
MBT medium buffer time
Figure 2 — delivery cycle 11-2-20
3.6.6
delivery cycle 21-2-20
cycle of 21 deliveries of a beverage, the next delivery starting after 2 min from the start of the previous one,
where the cycl
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